Fuel Filter??? - JeepForum.com
LinkBack Thread Tools
post #1 of 5 Old 02-18-2010, 08:05 PM Thread Starter
Registered User
1983 CJ7 
Join Date: Feb 2010
Location: Tennessee
Posts: 120
Fuel Filter???

I have recently installed a Weber 32 / 36 Carb on my 4.2 and am in the process of re-plumbing the fuel lines. The question is, do I need to keep the fuel filter with the return, or can this be replaced with a single outlet filter and the return eliminated?

TheGhost is offline  
Sponsored Links
post #2 of 5 Old 02-19-2010, 07:29 AM Thread Starter
Registered User
1983 CJ7 
Join Date: Feb 2010
Location: Tennessee
Posts: 120
TheGhost is offline  
post #3 of 5 Old 02-19-2010, 09:30 AM
Registered User
1980 CJ7 
Join Date: Jan 2006
Posts: 46
i'm definitely not the expert here...but i have the same set up and i have the return. i'm pretty sure the return is necessary especially with the stock fuel pump and most people that know more than me recommend a pressure regulator as well. that would be the two cents that i've borrowed from others over the years =)
80jeepcj is offline  
post #4 of 5 Old 02-19-2010, 01:23 PM
Mike Romain
Registered User
1986 CJ7 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant
Posts: 18,083
The return is needed. It prevents vapor lock by being at the top of the filter so on a hot shutdown the vapors blow back tot he tank rather than vapor locking the gas line. It also has a metered hole so the main center line keeps the pressure right for a BBD carb.

A gent also flipped his filter around and used the smaller return line with it's metered hole in it as a fuel pressure regulator. It gave 1.5 psi at idle and 3 at speed I think:

86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(10 new albums added Sept 16/10)
Mike Romain is offline  
post #5 of 5 Old 02-19-2010, 03:19 PM Thread Starter
Registered User
1983 CJ7 
Join Date: Feb 2010
Location: Tennessee
Posts: 120
Thanks for the info. I sort of figured I'd need it. It's just sort of ugly and I was hoping to hard-pipe most of it.
TheGhost is offline  

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
fuel filter help Brg0012 Jeep CJ Forum 9 11-10-2009 06:02 AM
Fuel filter/vapor-lock/fuel starvation...help please. hh65flyer Jeep CJ Forum 1 07-22-2009 03:05 PM
Fuel in Air Filter Jordy Jeep CJ Forum 5 07-19-2006 08:37 AM
Fuel Filter bfox48 Jeep CJ Forum 1 06-21-2006 11:18 AM
fuel filter bodi Jeep CJ Forum 3 01-18-2003 12:51 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome